Mark out the screw positions
Drive pilot holes for each screw
Hand-turn each screw to secure into pilot hole
Attach the adaptor plate to the screw driver
Check the installation aasembly in stable
Slowly drive the screw into the ground
Check for plumb and level throughout
Disassemble the torque arm
Decouple the driver from the screw head
Remove the driver completely
Double check the screw head is level
Use shims to adjust height if necessary